The average annual rainfall is 321mm, although this varies greatly from year to year, as a period of dry years can be followed by several years of wet weather. Rainfall can be unexpected and often heavy, leading to floods. Autumn is usually when it rains most, whilst the summer is practically dry.

The average relative humidity is of the order of 64.2%. Winds are light to moderate, but strongest in spring and of least note in winter.

Totana enjoys almost 3,000 hours of sunshine per year which bestows upon the region a tremendous feeling of well-being and benefits both environmental and agricultural conditions, and although the latter is obviously limited by the lack of rainfall, this can be compensated for through effective irrigation.

Totana has a population of approximately 25,000 inhabitants, who live in the town centre and the eight outlying areas of Paretón, Raiguero, Lébor, Ñorica, Mortí, Huerta, Viñas de Lébor and Sierra.